高炉风口水腔结垢原因及防治措施  

Causes and Preventive Measures of Scaling in Cavity of Blast Furnace Tuyere

作　　者：赵锦 贾利涛 张玉瑶 董舒宇 武建龙 黄俊杰[3] 徐萌 ZHAO Jin;JIA Litao;ZHANG Yuyao;DONG Shuyu;WU Jianong;HUANG Junjie;XU Meng(Research Institute of Technology,Shougang Group Co.,Ltd.,Beijing 100043;Beijing Key Laboratory of Green Recyclable Process for Iron and Steel Production Technology,Beijing 100043;Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan,Hebei 063200,China)

机构地区：[1]首钢集团有限公司技术研究院,北京100043 [2]绿色可循环钢铁流程北京市重点实验室,北京100043 [3]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《冶金动力》2024年第3期50-55,共6页Metallurgical Power

摘　　要：针对某钢铁厂高炉风口水腔结垢问题,对垢样进行X射线衍射(XRD)检测,检测结果显示垢样的主要成分为CaSO_(4)、CaSO_(4)·2H_(2)O和CaSO_(4)·0.5H_(2)O。分析高炉风口循环冷却水水质和原有阻垢剂性能,提出相应的改善措施,调控循环冷却水硬度在400 mg/L以下,并在原阻垢剂中配加6 mg/L乙二胺四甲叉磷酸钠(EDTMPS),有效避免了风口水垢的形成,提高了高炉风口的寿命。In response to the scaling problem in the cavity of blast furnace tuyere of an iron and steel plant,the scale samples were subjected to X-ray diffraction(XRD)test-ing,which showed that the main components of the scale samples were CaSO_(4),CaSO_(4)·2H_(2)O,and CaSO_(4)·0.5H_(2)O.Through analyzing the quality of circulating cooling water in the blast furnace tuyere and the performance of the original scale inhibitor,corresponding im-provement measures were proposed,which is regulating the hardness of circulating cooling water below 400 mg/L and adding 6 mg/L EDTMPS in the original scale inhibitor,the for-mation of scale in the tuyere was effectively avoided,and the service life of the blast fur-nace tuyere was improved.

关 键 词：风口 水垢 阻垢剂 硬度 循环冷却水 

分 类 号：TF549[冶金工程—钢铁冶金]